They have an extensive population report online, and a huge collector registry community
Instead of being only limited to 100 copies like Viscera Seer, each of the 63 Retro Frame Artifacts had 500 serialized copies printed, meaning there were theoretically 31,500 new serialized Magic cards introduced to the market (not all of them will be opened)
If you end up empty-handed, this one can get you back into the game in no time
This dazzling holographic single, which highlights the extremely popular, fire-breathing Pokmon, has become the 1993 SP Derek Jeter of Pokmon cards
There are so many cards of four-cost or less that can utterly change the game when they hit the field, and Beseech the Mirror just gave you easier access to any number of them